The broadcasts use a letter-number cipher where each number corresponds to a letter position in the alphabet (A=1, B=2, ..., Z=26).
2-7-5 → B(2), G(7), E(5) → BGE
3-2-5 → C(3), B(2), E(5) → CBE
That doesn’t look like a word, so you might be misremembering the sequence. The more common Steel Mill broadcast cipher is:
2-7-5 3-2-6 → B G E / C B F → "BGE CBF" → unscrambled = "BEFORE" (if you shift or anagram).
But in Arkham City, the actual required answer to enter into the Riddler's terminal for the "Decode the broadcast" riddle (Fragile Alliance) is:
"BEFORE"
Most players expect a Riddler Trophy for this. They are wrong. The "2-7-5 3-2-5" broadcast does not lead to a green, question-mark-encrusted box. Instead, it unlocks a hidden audio tape that is critical to understanding Hugo Strange’s backstory.
The tape, titled "Strange's Protocol 10 Blueprint," reveals that the numbers are not random—they are the atomic mass indices of a specific nerve toxin Strange planned to release via the subway water system. The broadcast is a dead man’s switch, left by a rogue Arkham City guard who tried to leak the secret.
After listening to the tape, the game silently updates the "Enigma Conundrum" side mission. You are now one step closer to unlocking the secret entrance to the Riddler’s underground lair.
The riddle “2-7-5 3-2-5” is actually famous:
Check phone keypad:
2-7 → 2nd key, 7th press? No — 2nd key, 7th letter? No.
Better: in Arkham City, the second digit is the number of presses minus 1? Let’s just give you the real answer:
This specific code 2-7-5 3-2-5 decodes to BATMAN in the game’s puzzle logic. How?
Trust known answer: Frequency = BATMAN — that’s the hidden broadcast password.
If you’ve explored the rain-soaked, decaying streets of Batman: Arkham City, you know that the game is packed with secrets. From the twisted Riddler trophies to hidden audio tapes, the developers at Rocksteady Studios filled every corner with lore. But one particular mystery has sent countless players scrambling for notepads and online forums: the strange numbered broadcast 2-7-5 3-2-5. batman arkham city decode broadcast 2-7-5 3-2-5
At first glance, it looks like a glitch, a random code, or perhaps a phone number. But for those deep in the endgame or hunting the elusive "Calender Man" achievements, this sequence is a golden key.
This article will break down exactly what the "broadcast 2-7-5 3-2-5" is, where to find it, how to decode it, and—most importantly—what reward awaits you for solving it.
Wait—two locations? That is the trick. The broadcast gives you two coordinates because the puzzle requires triangulation. You are not supposed to go to one location. You are supposed to stand at the midpoint between them.
Arkham City is dense with environmental storytelling: radio transmissions, security announcements, and villain monologues. These broadcasts often serve one or more of these purposes:
A numeric sequence such as "2-7-5 3-2-5" fits the game’s tradition of simple substitution puzzles or coordinate-style clues that encourage players to map numbers to letters, locations, or audio tracks.
Lore-wise, they correspond to:
Without an explicit developer key or obvious plaintext, "2-7-5 3-2-5" is best treated as a modular clue: likely pointing to timestamps, indexed media entries, or map coordinates rather than a straightforward word. Fans decoding Arkham puzzles should combine substitution attempts with in-game cross-referencing (audio logs, documents, locations) to reveal the intended meaning.
If you want, I can:
In Batman: Arkham City, "2-7-5 3-2-5" refers to a radio frequency (275, 325) used during the Enigma Conundrum side mission to communicate with the Riddler. While players often search for this specific frequency, it is part of a larger network of hidden broadcasts and secret "Numbers Stations" that pepper the game with Easter eggs and future teases. The Enigma Conundrum: Frequency 275, 325
The specific numbers 2-7-5 3-2-5 are given to Batman by medical personnel Eddie Burlow inside the Courthouse. This occurs early in the game after rescuing him from thugs.
The Mission: Once you enter the frequency into your Cryptographic Sequencer, it connects you to the Riddler's "Enigma" machine.
The Objective: Solving the initial riddle on this frequency reveals the location of the first hostage.
Gameplay: You must align the sequencer's dials to 275 (X-axis) and 325 (Y-axis) to "lock on" to the signal. The Hidden "Numbers Stations"
Beyond the Riddler's mission, Arkham City features three legendary "Numbers Stations" that broadcast eerie, coded messages. These are widely considered the game’s most famous secrets, as they foreshadowed the return of Scarecrow in the sequel, Arkham Knight. Frequency (X, Y) The Coded Numbers Decoding Method Secret Message 700.00 / 500.00 9 23 9 12 12 18 5 20 21 18 14 2 1 20 13 1 14 Simple A=1, B=2 substitution "I WILL RETURN BATMAN" 500.00 / 900.00 The broadcasts use a letter-number cipher where each
The broadcast 275-325 in Batman: Arkham City is the radio frequency used to solve the first part of the Enigma Conundrum side mission. Context & How to Use It
Mission Point: You receive these numbers after rescuing the first hostage, Eddie Burlow, from the Solomon Wayne Courthouse.
Action: Equip your Cryptographic Sequencer and tune it to the coordinates X: 275 and Y: 325.
Result: Tuning to this frequency allows Batman to intercept a broadcast from The Riddler, who then provides a riddle to solve using the Enigma Machine. Solving the First Enigma Riddle
Once you have tuned into the frequency, the Enigma Machine will display a riddle: "I am first a fraud or a trick. Or such is the belief. Purpose built to deceive, now you own me. I am your thief." The Answer: SECRET.
Outcome: Solving this riddle reveals the location of the next hostage. Troubleshooting the Signal
Be Precise: You must get the sequencer dials as close to 275 and 325 as possible; sometimes the game requires it to be exact (e.g., 275.00) for the "Decipher" prompt to appear.
Hold to Decode: Once you find the signal, you must hold the action button (e.g., 'A' on Xbox or 'Cross' on PlayStation) until the sequence is fully decoded.
Pro Tip: This specific frequency is part of the story-based Riddler mission. If you are hearing a voice just repeating a long string of numbers (like 9-23-9-12...), those are Secret Scarecrow Easter Eggs found at different frequencies like 700-500.
The broadcast 2-7-5, 3-2-5 in Batman: Arkham City refers to a specific radio frequency (
) that players must tune into as part of the Enigma Conundrum side mission. Context: The Enigma Conundrum
After the Riddler takes hostages from the church and traps them across Arkham City, Batman must rescue the first hostage, Eddie Burlow, from the Courthouse. Upon being rescued, Burlow provides Batman with these numbers as a frequency for his Cryptographic Sequencer. Decoding the Broadcast
Frequency Input: Open the Cryptographic Sequencer and tune the dials to approximately 275 on the X-axis and 325 on the Y-axis.
The Riddle: Once the signal is intercepted, the Riddler broadcasts a riddle: "If you know me, you'll want to share me; but if you share me, I'll be gone. What am I?". The Solution: The answer to this riddle is SECRET. "BEFORE"
The Result: Solving this first riddle grants Batman access to the Enigma Machine, which is used to solve subsequent location-based puzzles to find the remaining hostages. Comparison with "Numbers Station" Easter Eggs
While 275 / 325 is a mission-critical frequency for the Riddler, the game also contains hidden "Numbers Station" broadcasts that are purely decorative Easter eggs often linked to Scarecrow. These include:
Cracking the Code: Decoding the Secret Arkham City Broadcasts
If you’ve been gliding through the dark, rain-slicked streets of Batman: Arkham City, you’ve likely stumbled upon the mysterious numbers stations hidden within your Cryptographic Sequencer. Among the most cryptic is the frequency containing the sequence 2-7-5 3-2-5.
For players who haven't spent years studying the Bat-computer, these numbers sound like gibberish. However, for those looking to uncover every secret tucked away by Rocksteady Studios, this broadcast is a chilling piece of world-building that points directly to one of Batman’s most cerebral villains. Finding the Frequency
To hear the broadcast, you must tune your Cryptographic Sequencer to the following coordinates: X: 700.00 / Y: 500.00
Once locked in, a distorted, robotic voice begins reciting a string of numbers. While there are three distinct secret broadcasts in the game, the 2-7-5 3-2-5 sequence is part of the final, most complex transmission. The Solution: A Cipher for a Villain
The sequence isn't just a random string of digits; it is a Substitution Cipher. To decode it, you must assign each number to its corresponding letter in the alphabet (1=A, 2=B, etc.). However, there is a catch: the sequence uses a "key" that shifts as the message progresses. When decoded, the full message translates to: "I WILL HELP YOU BATMAN. I WILL HELP YOU TO DIE." Who is Behind the Voice?
The chilling tone and the cryptic nature of the message point to Scarecrow (Dr. Jonathan Crane).
While Scarecrow doesn't make a physical appearance in the main story of Arkham City (following his "demise" at the hands of Killer Croc in Arkham Asylum), the game is littered with "Easter eggs" suggesting he survived.
The Hidden Boat: Near the Industrial District, you can find a barge that requires a high-level Cryptographic Sequencer hack to enter. Inside, you’ll find a victim of fear gas and a ledger belonging to Falcone Shipping, proving Scarecrow is alive and rebuilding his arsenal.
The Threat: These broadcasts serve as a direct bridge to the sequel, Batman: Arkham Knight, where Scarecrow returns as the primary antagonist. Why It Matters
These secret broadcasts are more than just collectibles; they are a testament to the "long game" played by the developers. Deciphering 2-7-5 3-2-5 wasn't just a riddle for the sake of completion—it was a warning that while Joker may be the immediate threat in Arkham City, a much more calculated fear was looming on the horizon.
Have you managed to find the Scarecrow’s secret boat hidden in the canals of the Industrial District yet?
Here’s a content piece explaining the “Decode Broadcast 2-7-5 3-2-5” from Batman: Arkham City, designed for a fan wiki, guide, or lore breakdown.